Ozone-induced free polyamine response in scots pine in northern Finland |
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Authors: | Suorsa Marjaana Jokela Anne Sarjala Tytti Manninen Sirkku Huttunen Satu |
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Institution: | Department of Biology, University of Oulu, Finland. |
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Abstract: | The study aimed to assess the ozone-induced response in Scots pine (Pinus sylvestris L.) needles by measuring free polyamine concentrations. An open-top chamber experiment with realistically elevated ozone concentrations was carried out in northern Finland. A carry-over effect was detected: the concentrations of free polyamines, especially putrescine, were decreased at the beginning of the next growing season in the ozone-exposed trees. This indicates that the free polyamine pathway was not activated by ozone stress in Scots pines in northern conditions. |
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